The radical philosophies of difference articulated by Deleuze and Guattari are just beginning to impinge the field of education although less so within science education. One common thread among the numerous concepts and neologisms (especially the rhizome) that have been coined is the necessity for thinking and acting in what they call "experimental" modes, which shifts our focus onto the eternal process of becoming rather than merely (re)producing states of being. I reflect upon these seemingly utopian ideas in the light of recent educational changes in Singapore aimed at preparing competent citizen-workers for the knowledge economy and globalization. In particular, this paper shows how one elementary science teacher adopted guerilla tactics while negotiating these sometimes conflicting transitions in policies. I argue that neither mandated, top-down reforms nor drastic experimentation by individuals alone are most productive but rather working in the ephemeral in-between spaces of the rhizome, which Deleuze and Guattari had all long championed. [Abstract presented in both English and Chinese.]